2003204091 has 8 divisors (see below), whose sum is σ = 3052501504. Its totient is φ = 1144688040.

The previous prime is 2003204081. The next prime is 2003204101. The reversal of 2003204091 is 1904023002.

It is an interprime number because it is at equal distance from previous prime (2003204081) and next prime (2003204101).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2003204091 - 2¹⁸ = 2002941947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 95390671 = 2003204091 / (2 + 0 + 0 + 3 + 2 + 0 + 4 + 0 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003204051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47695315 + ... + 47695356.

It is an arithmetic number, because the mean of its divisors is an integer number (381562688).

Almost surely, 2^2003204091 is an apocalyptic number.

2003204091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2003204091 is a deficient number, since it is larger than the sum of its proper divisors (1049297413).

2003204091 is an equidigital number, since it uses as much as digits as its factorization.

2003204091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95390681.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2003204091 is about 44757.1680404379. The cubic root of 2003204091 is about 1260.5935078693.

Adding to 2003204091 its reverse (1904023002), we get a palindrome (3907227093).

The spelling of 2003204091 in words is "two billion, three million, two hundred four thousand, ninety-one".